Improvement in rolls for cigar-machines



D. A. WIGHTMAN.

` Cigar-Machines. N0, 140,859., Patented1u|y15,187s.

FIG 2 UNITED STATES PATENT OFFICE.

DANIEL A. WIGHTMAN, OF EAST GREENWICH, ASSIGNOR TO SOCRATES SCHOLFIELD,OF PROVIDENCE, RHODE ISLAND.

IMPROVEMENT IN ROLLS FOR CIGAR-MACHINES.

specieation forming part of Letters Patent No. 140,859, dated July15,1873; application meu November 2.2, 1872.

To all whom fit may concern:

Be it known that I, DANIEL A. WIGHTMAN, of East Greenwich, in the countyof Kent and State of Rhode Island, have invented an Improvement in Rollsfor Cigar Machines, of which the following is a specification:

The nature of my invention consists in an improved roll for forming-upor shaping cigarbunches and rolling on the binders or wrappers,consisting of a central revolving shaft, arranged to support a iiexibletube or wire spiral of greater diameter than such shaft at the centralcross-section thereof, and so operating that in its revolution the tubeor spiral will be continually caused by the outward pressure of theinclosed bunch to conform on -that side to the tapering form of a cigarby forcing the middle portion of the tube or spiral to revolveeccentrically, while its end or ends are made to move concentricallywith such shaft.

Figure l is alongitudinal sectional View of a single roll as employed ina binding-machine. Fig. 2 is a view ofthe two opposite rolls of' awrapping-machine, showing the deflection of the tube or spiralconsequent upon the pressure ofthe inclosed cigar-bunch. Fig. 3 is asectional view of a cluster of' rolls taken transversely at the middleof the inclosed cigar. Fig. 4 is a sectional view of a similar roll,made with a fiexible covering, attached to a hollow shaft s0 as to berevolved upon a stationary rod.

Referring to the drawing, A, in Fig. l, is a solid central shaft, to bedriven by means of the gear D, and upon which one or morefriction-rolls, B B B, may be placed. The fieXible tubular covering C issecured at either one or both of its ends to the xed collars or sleevesA and A, so `as to turn therewith, and may and decreasing in the sameproportion as that of the inclosed cigar.

The covering C may be made of coiled wire, India rubber, or any flexiblematerial adapted to the purpose.

The friction-rolls B B B are used to avoid the friction of the flexiblecovering C against the surface of the shaft A owing to the difference intheir relative diameters. The frictionrolls B B B will, therefore,partake of the motion due to the diameter of' the covering C, and thusrevolve faster than theshaft A, upon which they are placed. The diameterof the friction-rolls B B B is sogaged at their several cross-sectionsas to present the desired longitudinal curve to the surface of the cigarbunch.

The shaft Ainstead of' being made solid,as shown in Figs. 1, 2, and 3,may be made hollow, so as to revolve upon a stationary rod,a, as shownin Fig. 4. The surface of the shaft A may, iny this case, be hollowedont longitudinally in order to give the proper form to the inclosedcigar.

In rolling the cigar-bunch E the inner side of the flexible covering Cwill be pressed back against the friction-rolls B BB, shown in Figs. land 3, or against the shaft A, as shown in Figs. 2 and 4, thus producinga cigar-rolling surface, the various cross-sections of which will bccaused to revolve with differing eccentricity with the shaft A, uponwhich it is supported.

I claim as my inventionl. A revolving sh aft, A, in combination with aloose flexible covering, C, arranged to operate with a varyingeccentricity in forming a cigar-bunch, substantially as described.

2. The combination of a friction-roll, B, with a exible tubularcovering, C, and revolving shaft A, substantially as described.

DANIEL A. WIGHIMAN.

Witnesses:

D. B. POTTER, STEPHEN SMrTH.

